osteochondroma

solitary benign tumour that consists partly of cartilage and partly of bone. Osteochondromas are common and may develop spontaneously following trauma or may have a hereditary basis. No treatment is required unless the tumour interferes with function, in which case it should be surgically removed. Rarely, a solitary osteochondroma will become malignant in adulthood, giving rise to a chondrosarcoma.

Osteochondromatosis (also called hereditary multiple exostosis or diaphyseal aclasis) is a relatively common disorder of skeletal development in children in which bony protrusions develop on the long bones, ribs, and vertebrae. If severe, the lesions may halt bone growth, and dwarfing will result. Pressure on tendons, blood vessels, or nerves may cause other disabilities. Normally, such lesions cease growing at the end of puberty; in rare cases, reactivation of growth in adulthood may indicate malignant changes.

Osteochondroma — An abnormal, solitary, benign growth of bone and cartilage, typically at the end of a long bone. Osteochondromas are usually discovered in persons 15 to 25 years of age. They are typically detected when the area is injured, or when they become… … Medical dictionary

osteochondroma — a bony protuberance covered by a cap of cartilage arising usually from the end of a long bone, most commonly around the knee or shoulder. It is due to overgrowth of cartilage at the edge of the physis (growth plate) of growing bones. The… … The new mediacal dictionary